@type t() :: %KMS.Fallbacks.KekFallback{
  __meta__: term(),
  encrypted_master_key: term(),
  ephemeral_public_key: term(),
  id: term(),
  inserted_at: term(),
  kek: term(),
  kek_id: term(),
  public_key: term(),
  public_key_id: term(),
  version: term()
}